Volume 16, Issue 1 pp. 41-48
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ACUTE RESIDUAL TOXICITY OF SEVERAL DISINFECTANTS IN DOMESTIC AND INDUSTRIAL WASTE WATER1

Ronald W. Ward

Ronald W. Ward

Respectively. Professor of Biology and Laboratory Supervisor, Grand Valley State Colleges, Allendale, Michigan 49401 (present address for DeGraeve is Department of Zoology and Physiology. The University of Wyoming, Laramie, Wyoming 82071).

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G. Michael DeGraeve

G. Michael DeGraeve

Respectively. Professor of Biology and Laboratory Supervisor, Grand Valley State Colleges, Allendale, Michigan 49401 (present address for DeGraeve is Department of Zoology and Physiology. The University of Wyoming, Laramie, Wyoming 82071).

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First published: February 1980
Citations: 8
1

Paper No. 79051 of the Water Resources Bulletin. Discussions are open until October 1, 1980.

Abstract

ABSTRACT: This study determined the acute toxicity of waste water disinfected with chlorine, bromine chloride, or ozone. The residual toxicity of effluent dechlorinated with sulfur dioxide was also tested. Toxicity tests were conducted with cyprinid, salmonid, and centrarchid fishes, as well as several species of fresh water macroinvertebrates. Residual chlorine exhibited the greatest toxicity of the disinfectants tested; dechlorination with sulfur dioxide effectively eliminated the toxicity of chlorinated effluent. Residual ozone produced mortality in test animals only under special conditions where subjects were exposed to effluent immediately after it was contacted with ozone, and chlorobrominated effluent was more toxic to salmonids than chlorinated effluent.

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